Bedard, George J., author.
Slow sand filtration : appropriate technology for safe water : the IRC Slow Sand Filtration Project / text, George J. Bedard and Han A. Heijnen.
The Hague : IRC - Water and Sanitation Centre, [1981?]
12 unnumbered pages : illustrations, plans ; 15 x 21 cm
Water Purification Slow sand filtration.
Eau Épuration Filtration lente sur sable.
Heijnen, Han A., author.
International Reference Centre for Community Water Supply and Sanitation, issuing body.
Minimum Cost Housing Group fonds.
IRC Slow Sand Filtration Project
Location: Library main y 301070
Call No.: BIB 247279
Status: Available
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